Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessCompromise internal network host
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DeliveryAuthenticate to Connections with low privileges
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ExploitCraft SSRF payload targeting internal resource
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ExecutionInduce user interaction to trigger server-side request
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ImpactReceive response disclosing internal data or bypass security control
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Credential Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires three concurrent conditions: (1) a pre-compromised internal server within the same network environment as HCL Connections, which is explicitly stated in the description as a prerequisite - this is not a direct external attack path; (2) a low-privileged authenticated session on HCL Connections (PR:L from CVSS vector); and (3) user interaction, per UI:R in the CVSS vector, meaning a victim must perform some action such as clicking a crafted link or loading attacker-controlled content. What limits exploitation: the high attack complexity (AC:H) reflects the need for an existing internal compromise before this SSRF can be triggered; unauthenticated external attackers cannot exploit this directly; and the scope remains unchanged (S:U), so impact is confined to data and services reachable by the Connections server process itself. |
| Impact | The quantitative signals collectively describe a low-priority vulnerability in isolation. The CVSS base score of 3.7 reflects high attack complexity (AC:H), authenticated access (PR:L), and required user interaction (UI:R), all of which reduce exploitability. There is no EPSS data provided, no CISA KEV listing, and no public proof-of-concept. However, the description's condition - 'when an internal server is compromised' - introduces a chained-attack concern: if an attacker has already gained a foothold on an internal host, this SSRF becomes a lateral movement tool to probe or interact with further internal services, effectively extending the blast radius of the initial compromise. The integrity impact (I:L) alongside confidentiality (C:L) suggests the attacker may be able to manipulate requests to internal APIs, not merely read data. Overall, this is a low standalone priority but warrants remediation in environments where HCL Connections is exposed to partially trusted or multi-tenant internal networks. |
| Exploit ScenarioDerived | An attacker who has already compromised an internal server in the same environment authenticates to HCL Connections with low-privilege credentials and tricks a user into interacting with a crafted request (e.g., a specially constructed share link or embedded content). The Connections server then issues a server-side HTTP request to an internal target - such as a cloud metadata service or an internal REST API - returning sensitive information or triggering an action on a system the attacker could not reach directly. No public exploit code for this specific vulnerability has been identified at time of analysis. |
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Alert meAnalysisAIv1 – Aug 26, 2026
Server-side request forgery in HCL Connections allows a low-privileged, authenticated attacker - operating from or through a compromised internal server - to issue unauthorized outbound requests to internal resources, resulting in limited information disclosure or potential security control bypass. The vulnerability carries a low CVSS base score of 3.7 due to high attack complexity, required user interaction, and unchanged scope, and no public exploit or CISA KEV listing exists at time of analysis. Risk is constrained by the prerequisite of a pre-compromised internal host, making this a meaningful lateral-movement enabler rather than a direct initial-access vector.
RemediationAI
Consult the HCL vendor advisory at https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0128493 (KB0128493) for the specific patched version and upgrade instructions; an exact fix version was not present in the available intelligence data, so 'Patch available per vendor advisory' is the applicable patch status. As a compensating control pending patching, restrict outbound HTTP/HTTPS requests from the HCL Connections application server using egress firewall rules or a forward proxy allowlist, limiting reachable destinations to only required external endpoints - this directly mitigates SSRF impact by preventing unauthorized internal traversal. Additionally, harden internal network segmentation so that the Connections server cannot reach sensitive internal services (metadata APIs, internal admin endpoints) that should be unreachable from application-layer hosts. Note that egress filtering may require testing to avoid breaking legitimate Connections federation or notification features.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
HCL Connections is an enterprise social collaboration platform (formerly IBM Connections). CWE-918 (Server-Side Request Forgery) describes a class of vulnerability where a server-side component can be induced to issue HTTP or protocol requests to arbitrary destinations chosen by the attacker, potentially reaching internal services that would otherwise be network-isolated. In this case the CVSS vector AV:N/AC:H/PR:L/UI:R indicates the attack is network-delivered, requires low-level authenticated access, demands user interaction (suggesting a crafted link or content submission path), and involves high complexity - consistent with exploitation through a trusted but compromised internal server rather than a direct external request. No CPE string was provided, so exact affected versions must be derived from the vendor's KB0128493 advisory.
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Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Network vector confirmed by SSRF class; AC:H reflects mandatory pre-compromised internal host prerequisite; PR:L and UI:R align with authenticated, user-triggered exploitation path.
Primary rating from Vendor (hcl).
CVSS VectorVendor: hcl
DescriptionCVE.org
HCL Connections is vulnerable to server-side request forgery (SSRF) when an internal server is compromised possibly allowing an attacker to send unauthorized requests in certain scenarios leading to information disclosure or security bypass.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
EUVD-2025-210804
GHSA-pvr3-52wm-4cjw
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB